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Expired Canadian patentCanada

Automated casting plant

CA 1265655 C · Owner: Meves, Donald E. · Inventors: Meves, Donald E.; Kenzler, Robert F.; Wasem, John W.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Sand molds stored in a prepour storage system are retrieved and conveyed to a pouring station with a total mold cavity capacity equal to the amount of molten metal to be poured. Despite the fact that the mold cavities vary in size they are delivered to the pouring station in a sequence that accommodates delivery of the molds having variable metal capacity to one of a plurality of cooling conveyor lines so that each cooling line conveys molds which require variable lengths of time to cool before such molds can be conveyed into a punchout where the cope flask is stripped and the sand mass and castings are pushed up from the drag flask and onto a shakeout which conveys sand to a reclaim system …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted February 13, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 13, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 30, 1986
GrantedFebruary 13, 1990
Term endedFebruary 13, 2007
Patent numberCA 1265655 C
Classification (IPC)B22D46/00 +1 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedApril 30, 1986Patent grantedFeb 13, 1990Term endedFeb 13, 2007

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.